Clackamas

On a nursery in Boring, researchers are demonstrating a new high-tech pesticide sprayer for a dozen growers. Oregon State University extension entomologist Robin Rosetta explains how this so-called “smart sprayer” uses a computerized sensor to detect the shape of plants and tell the nozzles on the machine where to spray and where not to spray.

Sheriffs, prosecutors, social service providers and others attended a summit on gun violence Wednesday, convened by U.S. Attorney Amanda Marshall. The sessions focused on mental health, the legal tools for disarming dangerous people and other public safety topics.

Recent mass shootings in Oregon and Connecticut have thrust mental health issues into the spotlight. Some Oregon lawmakers and mental health advocates hope there's enough momentum to keep the conversation front and center. Unlike gun control, there is a consensus that appears to be emerging on funding mental health programs.

Two people, plus the suspected shooter, are dead after police say a gunman opened fire at a crowded shopping mall in suburban Portland Tuesday. An ambulance took one survivor of the attack to OHSU Medical Center in Portland. The young woman is expected to survive. Correspondent Chris Lehman reports.